JPS60101006A - Mold structure of flush type stool made of pottery - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed Description of the Invention] [Technical Field] The present invention relates to a type tI toilet used for manufacturing a ceramic flush toilet.
Regarding improvement of lye structure.

[Prior art]

Conventionally, ceramic flush toilets have been manufactured by a so-called pour molding method in which a slurry-like raw material is poured into a mold made of a water-absorbing material such as gypsum.

Flush-type toilets have a rim passageway around the entire upper area of the main body to supply flushing water toward the bowl.
, and what is called "open rim".

As shown in Fig. 1, the "perfumeration rim" method defines a rim passageway (102) in the form of a closed space around the entire upper circumference of the bowl (101) of the toilet body (100), and the bottom wall ( 103) has a water injection hole (
1Ω4).

Since the rim passageway (102) has a shape that projects inward toward the bowl (101), the body (105) including the bowl (101) and the rim part (1
It is difficult to integrally mold the body part (105) and the rim part (106.

On the other hand, in the "open rim" method, as shown in FIG. 2, the lower part of the rim passageway (110) is shaped like a slit L1 that opens around the entire circumference. This consists of molds as shown in Figure 3 (upper mold (111), working mold (112) and lower mold (113).
)) When slurry is poured into the structure and left for a certain period of time, the mud gπ near the surface of each of the molds (III) to (113) absorbs water, loses fluidity, solidifies, and becomes ink. Then, when the fluid slurry inside ζ is drained, only the product-shaped molded body remains. Then, the molded product is further left for a certain period of time until the water content is reduced and the molded product reaches an appropriate hardness, and then the molded product is removed from the mold to complete the molding process.

As described above, the open rim type allows the rim part and the body part to be integrally molded, making it ideal as a popular product.

However, as shown in FIG.
Since the structure is supported only by a), after the molded product is removed from the mold, the rim inner wall (110b) side may not be able to maintain its regular shape and may be deformed. Due to this deformation, the opening cross-sectional area of the slit (S) cannot be maintained, and the rim outer wall (110a
) and the inner wall (110b) from joining,
It is not possible to reduce the size of the slit below a certain limit.

Therefore, in the flush toilet made from the above mold,
The water injection flow area of the rim passageway (110) is significantly larger than that of the perforated rim type, and the rim passageway (110)
110) In order to supply washing water all around the bowl (101) and wash the bowl (101) with the required flow rate distribution, the flow rate must be increased excessively, resulting in a problem of poor water saving performance.

[Purpose of the invention]

SUMMARY OF THE INVENTION An object of the present invention is to provide a ceramic flush toilet mold structure in which the toilet body can be integrally molded by a casting method and can be formed into a rim passageway that saves flushing water.

[Structure of the invention]

The structure of the present invention is a mold for a ceramic flush toilet in which a rim, a part, and a body can be integrally molded, and the same mold has at least an upper mold for molding the upper part of the toilet and a mold for molding the toilet body. At least one of the upper mold and the working mold is provided with a protrusion that can be attached to the slit so as to be able to partially close and integrate a slit opening at the lower side of the rim passageway of the rim portion.

〔Example〕

The present invention will be described below based on embodiments shown in the drawings.

FIG. 4 is a sectional view showing the mold structure of the flush toilet according to the present invention, and FIG. 5 is a sectional view taken along the line I-1 in FIG. 4.

In the figure, (1) is an upper mold that forms the upper side of the toilet main body to be manufactured, (2) is a mold that forms the body part, and (3) is a lower mold that forms the lower part. ．． (21, (3
1 is made of water-absorbing material such as plaster.

(4) is a drain plug type that forms a drain on the bottom wall of the toilet bowl, and the slurry inlet (5) is penetrated in the axial direction.
A slurry supply hose (black) is removably connected thereto. The slurry serving as the raw material is pumped through the slurry supply hose (6) by a pump (not shown).

(7) is installed approximately in the center of the second mold (11), and the upper mold (11
This is a hendockunk that communicates with the inside of the mold by communicating with the opening Of81 provided through the mold, and is for maintaining the slurry pressure inside the mold at a set value.

Furthermore, (9) is a water inlet plug type for opening a water inlet provided on the rear side of the toilet bowl.

Incidentally, air holes (not shown) are provided at required positions for supplying and discharging the slurry, and in order to efficiently discharge the slurry, the entire mold is constructed to be tilted about one turn.

The center part of the upper mold (11) protrudes downward, and the annular hanging wall (11
a) forms the internal wall of the rim passageway. Also, mold (2)
A hanging wall (2a) forming an external wall of the rim passageway is formed at a position facing the hanging wall (Ia) so that the rim passageway can be formed together with the upper mold (1).

The filled layer on the bent end (1b) of the hanging wall (la) forms the inner edge of the slit, and the filled layer on the inner circumferential wall of the mold (2) closest to the bent end (1b) forms the outer edge. The shortest distance between the bent end (1b) and the mold (2) can be made smaller than that of the conventional open rim type mold.

In Fig. 5, Ql is a raised part protruding from the working mold (2) toward the bent end (1b) of the upper mold (11, as shown in Fig. 6), and is formed with the required width on the rim water supply side. be done.

The amount of protrusion of the raised portion 0ω is set so that when the rim passageway is integrally molded by the open rim method, the inner and outer walls of the rim passageway can be continuously filled.

As is clear from Fig. 6, the distance between the bent end (1b) of the upper mold (1) forming the slit and the opposing edge (2b) of the working mold (2) facing it is such that the water supply chamber side is It is small and the side farthest from the water supply chamber is made larger.

The manufacturing process of a flush toilet using the mold structure described in the following is described below.

First, the slurry 51 is put into the mold through the slurry supply bowl (6) until the belly button (7) is full, and the supply of slurry is stopped. In addition, the bottom surface of the upper mold (1) and the drain plug mold (4)
Coat the top surface with resin or the like to prevent it from absorbing water.

If the slurry is left in the mold for a certain period of time, each mold (
11, (21, (31) The slurry near the surface absorbs water, loses its fluidity, solidifies and becomes fleshy.

Here, in the vicinity of the rim part formation, as shown in FIG. Become.

After a certain period of time has elapsed, drain the remaining fluid slurry from the drain plug mold (4) and remove the molded product from the mold when the water content has decreased, and the product will have an external shape as shown in Figure 9. Can be manufactured. Then, if the parts defining the bowl (B) and the trap ('') on the downstream side thereof are separately molded and glued,
A flush-type Western-style toilet bowl (20) is completed.

In FIG. 9, (21) is a water supply port formed by a water supply port plug type (9), (22) is a water supply chamber, (23) is a rim communication hole provided through the partition wall (24), and ( 25) is a rim passageway formed over substantially the entire circumference of the toilet rim portion (26). In addition, (27) is the water supply chamber (22) and bowl (B)
This is a punching hole that is opened toward the inner trap (T) and forces floating waste toward the drain port (28).

This embodiment uses a wash-off type (
Since it is a washdown type), there are no holes for drilling (27
) along with the washing water discharged from the rim water passage (25
) from the bowl (
B) The cleaning water flowing down the trap ('I') falls so as to cover the reservoir surface of the trap ('I'), and becomes in an operating state in which dirt is washed away. Therefore, the water supply port (2) is opened from the center of the bowl (13).
From the rim passageway (25) on the I) side, the bowl (
B) The flow rate is sufficient to wash the surface, and the inside of the slit (S) formed as described above can be formed small.

In FIG. 10, (30) is the raised portion Ql of the mold (2).
This is a connecting portion where the inking layer (L) of the upper mold (1) and the working mold (2) are combined to form ζ. As mentioned above, when reducing the width of the sulin l-(S) on the water inlet (21) side, this connection part (30) is connected to the rim inner wall (
26a) can be supported from both sides, and a regular-shaped rim passageway (25) can be formed without deformation.

With the above configuration, from the rim water passageway (25) to the bowl (B)
Since the flushing water can be spouted with the necessary flow rate distribution toward the flushing toilet, it can be used satisfactorily as a flushing toilet.

Also, in other types of toilet bowls, if the raised portions θω of the mold (2) are increased so that the connecting portions (3o) can be formed at a predetermined pitch over the entire circumference of the rim water passageway (25). By making the inside of the slit (S) narrower, the area of the opening flow path can be reduced, and the washing water from the water supply port (21) flows into the bowl (B).
Water can be supplied to the entire area and the flow rate can be reduced, improving water conservation.

〔effect〕

As described above, according to the present invention, the slit in the rim water passage hole of the open rim type to be manufactured can be made narrow without deforming, and the slit can be set so that water is spouted in the required amount distribution to the bowl. This has the effect of reducing the flow rate of washing water and improving water conservation.

[Brief explanation of drawings]

Figure 1 is a cross-sectional view of the main parts of a flush toilet with a perforated rim water passage, and Figure 2 is a cross-sectional view of the main parts of a conventional open-rim flush toilet, No. 30, Issue 1.
FIG. 4 is a cross-sectional view schematically showing a mold for manufacturing a Punrim type toilet; FIG. 4 is a cross-sectional view showing the mold structure of a flush toilet according to the present invention; FIG. 5 is a view taken along the line 1-1 in FIG. Sectional view according to No. 6
The figure is a cross-sectional view taken along the line 1-11 of the same figure, Figure 7 is a cross-sectional view showing the state of inking after the slurry is put into the mold, Figure 8 is a cross-sectional view showing the state of the connection part being created, and Figure 9 The figure shows manufactured water 61-
A sectional view of the toilet bowl, and FIG. 10 is a plan view thereof. (11 Upper mold (2) Side mold (3) Lower mold 001 Raised part (20) Water δL type Western-style toilet bowl (21) Water supply port (22) Water supply chamber (25) Rim water passage (30) Connection part (S) Suriso I- Patent Applicant Totoki Co., Ltd. Agent Masu Tegori (2 idiots) A l IA Figure 2 Figure 3 ■ Bud 4 Figure 5 Figure 6 Figure 7 Figure Fan 8ρ1

Claims (1)

[Claims] 1. A rim passageway formed on the upper side of the toilet bowl by injecting and hardening mud π, which has at least an upper mold for molding the upper part of the toilet bowl to be created and a mold for molding the body of the toilet bowl. A mold structure for a flush toilet in which a rim part having a slit at the lower part and a body part can be integrally molded, wherein at least one of the upper mold and the usage mold has an ink layer of mud R. A type structure of a flush toilet bowl made of ceramics, characterized by a raised part that can be combined to partially close the slit.